Jean de Beaumanoir
Jean, or Jehan de Beaumanoir, marshal of Brittany for Charles of Blois, and captain of Josselin, is remembered for his share in the famous Combat of the Thirty during the War of Breton Succession (1341–1364) between the warring parties of competing claimants for the Dukedom. == Origin == Jean IV de Beaumanoir was the son of Jean III de Beaumanoir, Lord of Beaumanoir and Merdrignac and Marie de Dinan-Montafilant, known as “Marie du Guildo”, and the nephew of Robert.